Unknown. His photo is shown age-progressed to 39 years. Leach was a senior at Linwood High School, and left his home at 6:30 p.m. on April 15, 1988 to attend a friend's pre-graduation party in a rural area. He stopped at a convenience store on the way, as well as making other stops, and didn't reach the party until between 9:30 p.m. and 10:00 p.m. Witnesses at the party believe Leach left between 1:15 a.m. and 2:00 a.m., but no one actually saw him leave. At the time he left, he was intoxicated and was driving his mother's gray four-door 1985 Dodge sedan with Kansas plates LVJ8721. He never returned home, and has never been seen again. In December 2002, his case was reclassified from a missing person case to a homicide. His case remains unsolved.